The Bearing,ball,annular, cataloged under National Stock Number 3110-01-478-1350, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-478-1350 |
| Primary Part Number | 4M378-12 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Material | STEEL COMP 440C OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 4M378-12 PRIMARY | The Boeing Company Div Defense (USA) |
| AKB12V4008 | New Hampshire Ball Bearings Inc Div Astro Division (USA) |
| Reference | Meaning |
|---|---|
| KMDB12-38 | 5/2 Secondary reference U.S. Government activity |
NSN 3110-01-478-1350 is a Bearing,ball,annular, manufactured by The Boeing Company Div Defense, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-478-1350 has 2 manufacturer part numbers on file: 4M378-12 (The Boeing Company Div Defense), AKB12V4008 (New Hampshire Ball Bearings Inc Div Astro Division).
Key specifications for 4M378-12: Criticality Code Justification: AGAV; Part Name Assigned by Controlling Agency: BEARING,PLAIN,SELF-ALIGNING,SELF-LUBRICATING, GROOVED OUTER RING; End Item Identification: F 18 E/F FIGHTER AIRCRAFT; Material: STEEL COMP 440C OVERALL. 2 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.